INSTRUMENTATION STUDY AND ANALYSIS FOR OBSERVATION OF RE-ENTRY PHENOMENA

Abstract

The uses of pyrometry, radiometry, spectrophotometry, and photography for determining the temperature of a re-entering body are analyzed. It is shown that all but the first of these methods can be used to obtain temperature information on re-entering objects that are not ablating. This temperature information is gained from measurements on the shape of the thermal emission curve. Methods for handling the ablating case are discussed. The use of photography for identifying tracer flares that are reentering the earth's atmosphere at high velocities was analyzed and shown to be feasible. How photography, in conjunction with tracer flare re-entry experiments, can be used for establishing the validity of mathematical, reentry, burn-up models was also analyzed. The various associated difficulties and how they might be overcome are discussed in some detail.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1963
Accession Number
AD0414163

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Atmospheric Attenuation
  • Atomic Spectra
  • Cameras
  • Chemical Reactions
  • Corporations
  • Energy
  • Heat Energy
  • Materials
  • Mathematical Models
  • Measurement
  • Photographs
  • Photography
  • Radiation
  • Radiation Pyrometers
  • Scattering
  • Spectra

Fields of Study

  • Physics

Readers

  • Aerosol Science/Aerosol Physics
  • Systems Analysis and Design
  • Thermal Physics or Thermal Science.